Waldemae bergh



(No Model.)

2 Sheets-Sheet 1. W. BERGH. MEANS FOR OPERATING GENTRIFUGAL MACHINES.

Patented Nov. 26, 1889.

FI'GJ.

uulnumm 1 g I 1 l 1:

N. PETERS. Fholo-Llkhogm hcr. Washingfan. DC.

(No Model.) 2 Sheets-Sheet 2. W. BERGH.

MEANS FOR OPERATING GENTRIFUGAL MACHINES.

No. 415,698.- H Patented Nov. 26, 1889.

u PETERS, wmwmhc nuwr, Wuluinglou. m;

UNITED STATES PATENT OFFICE.

\VALDEMAR BERGH, OF LONDON, ENGLAND, ASSIGNOR TO DAVID HUMMEL, 1 JR, OF SAME PLACE.

MEANS FOR OPERATING CENTRIFUGAL MACHINES.

SPECIFICATION forming part of Letters Patent No. 415,698, dated November 26, 1889. Application filed May 16, 1889. Serial No. 310,9il. (N model.)

To all whom it may concern.-

Be it known that I, IVALDEMAR BERGH, merchant, a subject of the Queen of Great Britain, residing at London, in England, have invented certain new and useful Improvements in Means for Operating Centrifugal Machines, of which the following is a specification, reference being had to the accompanying drawings.

This invention consists in a new or improved mode of driving centrifugal fluid-separating machines, whereby I obtain a larger diminution of frictional resistance, so that, for instance, much larger machines can be conveniently driven by hand than heretofore was the case.

The invention also consists in Working the separator-drum or other centrifugal appliance from above insuch manner that, its

spindle is, by a carrier part of any suitable form, merely carried round with and by the driving-spindle, but so that the entire weight and frictional resistance, due to the weight of the drum spindle, of the drum, and of the 2 5 fluid contents thereof, is received by a bottom step-bearing, by preference of the cone-point form, or other suitable step-bearing with minimum frictionwithout the use of the usual bush or neck bearing for the drumspindle. 0 The drum, its contents, and the drum-spindle thus act like a spinning-top; supported below and free at the-top, where it balances itself freely in the driving-spindle carrier part, which, however, is furnished with an 5 elastic bush for the purpose of counteracting any slight lateral vibration of the top of the drum-spindle. It should be noted, however, that this mode of driving is only applicable in its entirety to fiuid-separating 4p machines, in which fluids or liquids of a 110* mogeneous nature are being treated, and not such in which are contained solid or semisolid lumps of varying size, which would prevent the drum-contents from being balanced 5 and the drum from acting in the manner of a freely-rotating spinning-top.

Figure 1 is a vertical section through a hand-worked separator especially suitable for separating cream from milk, and Figs. 2 and 3 are detail views. Figs. 4 and 5 are vertical sectionsof modified forms of separatondrum.

Fig. 6 is a side view of upper spindle when arranged for being driven by machine-power. Referring to Figs. 1, 2, and 3, the spindle A of the drum B is at the top provided with 5 5 a cross-pin a, as shown more clearly in the sectional detail views, Figs. 2 and 3. This cross-pin to works loosely in the notches formed in the opposite sides of the bottom recess in the upper spindle O. The spindle A works with lateral play in a rubber bush D in this recess, the object of the elastic bush being to counteract any slight lateral vibration of the top of the drum-spindle A; or, vice versa, the lower spindle A may be formed with a recess in which the upper spindle C enters. The upper spindle O is formed with worm G, into which gear the teeth of the wheel E. On it or. on its spindle is fixed a small pinion F, which is driven by the large spur-Wheel G by means of a handle. The worm C and worm-wheel E are inclosed in a trough-shaped chamber H of the frame II by the lid H and the oil contained in the chamber II, being continually flung" up by the wheel E, is thrown into the wnm O and the bearings of the spindle'O. The spindle 0 works with a hardened steelpivot against a hardened steel-pointed screw at the top and in bushes I and I at its uppeer and lower part. It has a collar C for conveying any surplus oil to a dish K, which latter may be emptied occasionally, the chamber H being then replenished therefrom. Machines constructed as here shown 8 are so frictionless that one man with case can work a machine with a twelve-inch separatordrum. The drum-spindle A is formed with conical bottom enlargement or disk A, onto which drops the center L of the diaphragm L, so that the spindle A can be lifted out of it. The diaphragm L is formed withaflange for conveniently joining it to the flange of the lower compartment M and the intermediate flange or bottom rim of the drum proper 5 B. The latter is of a part-spherical form with a neck B, which at the top is formed with a small inner flange B The outlet hole or holes I) are just below the latter. The center part of the diaphragm is chambered out at L in' the usual manner for receiving the milk from the feed-tube and has slanting out let-holes Z to the drum B. The lower compartment M, which receives the skim-milk by way of the holes m, has a central hole M, with turned-back flange, and a small notch m for ready escape of the skim-milk to the receiver N. O is the receiver for the cream. These receivers have the usual outlet-pipes to pails placed below. The cone-pivot L runs in the hard bearing Q, which has a fine central hole, and which rests in the step-piece Q. Thelatter has a central hole for inserting a drift to remove the bearing Q .when required. The step Q rests in the conical plug R, terminatin g in a screwed spindle R,which has a bevelwheel S, forming its nut and capable of being turned by a bevel-wheel S, with hand-wheel S for raising and lowering the step-bearin g plug R, which fits in the pedestal T.

Fig. at shows a suitable form of drum B, spun in one piece with the lower compartment M, with a flange or rim projection and corresponding recess for the diaphragm L.

Fig. 5 shows an other form in which the drum B. and diaphragm L are spun in one piece with a projecting rim or flange, over which the lower compartment M isspun. Obviously the diaphragm L and bottom compartment M might be spun in one piece and the drum B. spun over it.

The construction of the drum is not claimed in this application, but forms the subjectmatter of another application, filed by me on the 26th day of August, 1889, Serial No. 322,014..

Then, the machine ,is driven by power, I may arrange the upper spindle and its bearings. in; the manner shown at Fig. 6, where the spindle has a pulley P fixed on it for being driven directly from some large quickly-revolving pulley,

Having fully described my invention, what I desire to claim and secure by Letters Patent 1. In a centrifugal fluid-separating machine, an upper vertical spindle to which the driving-power is applied, and which is provided with a bottom recess fitted with an elastic bush, and having notches across its lower end, in combination with a separatordrum having an upwardly-proj ectin g spindle fixed thereto, the upper end of said drumspindle fitting easily in the aforesaid elastic bush, and having a cross-peg which fits loosely in the aforesaid cross-notches of the upper driving-spindle, and in combination with a step-pivot on the bottom of the drum, and with a step-bearing for said pivot in such manner that the drum with its contents finds its true perpendicular or balanced position after the manner of a spinning-top, substantially as set forth.

2. In a centrifugal fluid-separating machine, the worm-wheel E, in combination with the spindle 0, having a worm 0, gearing with said worm-wheel E, and having a bottom recess with notches across the same,

the elastic bush D, fitting in said recess, the drum-spindle A, fitting easily in said bush, and having a peg a fitting loosely in the said notches, the disk L, to which the lower end of the spindle A is detachably fixed, the upper drum-compartment B and the lower drumcompartment M, to both of which the disk or diaphragm L is fixed, a pivot 011 the bottom of the diaphragm, and a step-bearing in which the pivot rotates, substantially as set forth.

3. In a centrifugal fluid-separating machine, the combination of the worm-wheel E, the driving-spindle 0, having a bottom recess and notches across the same, and having worm O, gearing with said worm-wheel, the bearings I and I for said spindle and a screw taking a bearing against its upper end, the elastic bush D, fitting in the recess in the bottom of the spindle O, and drumspindle A, having a peg which fits loosely. in the notches of the spindle O, substantially as set forth.

4. In a centrifugal separating-machine, the combination of the worm-wheel E, a worm O on the spindle O, to which the power is applied, the bear-ings I I for said spindle, and a casing H, inclosing the aforesaid parts and containing oil for lubricating them, substantially as set forth.

5. In a centrifugal fluid-separating machine, the worm-spindle 0, provided with a collar C in combination with the dish K, for catching the oil running from the said collar, substantially as. set forth.

6. In a centrifugal fluid -separati ng machine, the spindle A, with peg a at its upper end, a pivot" L at its bottom, and an intermediate conical enlargement for carrying the drum, in combination with an upper drivingspindle 0, supported in bearings and having a. bottom recess with cross-notches for the peg a to take into, and an elastic bush D, in which the upper end of the spindle A fits easily, a step-bearing for the pivot L to work in, and means for raising and lowering said bearing, substantially as set forth.

7. In a centrifugal fluid separating machine, the combination of the framing H with oil-chamber 'H, in which the driving-gear works, the lid H for the said oil-chamber,

the bearings I and I for the driving-spindle,

the said spindle C, with worm C", the wormwheel E, the pinion F, the toothed wheel G gearing therewith, means for turning said wheel, the drum-spindle A, with pivot L the step-bearing Q, and the screwed spindle R, bevel-wheels S S, and hand-wheel S for raising and lowering the step-bearing, substantiallyas set forth.

IVALDEMAR BERGH. Witnesses:

WALTER J. SKERTEN,

17 Gracechm'ch St, London, E. C. DAVID McGAw,

7 7 Chancery Lane, London. 

